diff --git a/include/configs/trab.h b/include/configs/trab.h
index 4d37807..95ee37e 100644
--- a/include/configs/trab.h
+++ b/include/configs/trab.h
@@ -89,6 +89,7 @@
  * Size of malloc() pool
  */
 #define CFG_MALLOC_LEN		(CFG_ENV_SIZE + 128*1024)
+#define CFG_GBL_DATA_SIZE	128	/* size in bytes reserved for initial data */
 
 /*
  * Hardware drivers